strengthen your ah muscles. >> superman, superman, superman. on the ground. to the left. to the right. this way. i love you. >> reporter: followed by a touch and then, a tickle. can we see her biceps? does she have them? >> look at those things. >> reporter: with muscles like those, almost 7 months, next thing you know she'll be weightlifting. the workout is over in a mere minute and a half. never fear. coming soon, the workout 2. >> this time, you know, it's going to be a little bit tougher. >> reporter: just think, a workout instructor before she's learned -- ♪ your abcs >> reporter: doing the locomotion with daddy. jeanne moos, cnn, new york. >> that's pretty awesome. i was looking at the 3-month-old this morning. i can't do it, tim, to show you the pictures.